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{"id":1093,"date":"2010-01-28T21:01:12","date_gmt":"2010-01-28T19:01:12","guid":{"rendered":"https:\/\/energethique.be\/?p=1093"},"modified":"2010-01-28T21:01:12","modified_gmt":"2010-01-28T19:01:12","slug":"le-soleil-comme-sil-en-pleuvait","status":"publish","type":"post","link":"https:\/\/energethique.be\/2010\/le-soleil-comme-sil-en-pleuvait\/","title":{"rendered":"Le soleil comme s’il en pleuvait …"},"content":{"rendered":"

Le probl\u00e8me de l’alimentation \u00e9lectrique solaire est que le besoin est continu alors que la production solaire est par essence d\u00e9pendante des conditions m\u00e9t\u00e9orologiques et de la dur\u00e9e d’ensoleillement.<\/p>\n

Stockons cette \u00e9nergie me diront certains … heu certes mais les solutions sont loin d’\u00eatre v\u00e9ritablement \u00e9prouv\u00e9es et surtout tr\u00e8s peu \u00e9cologiques.<\/p>\n

Qu’\u00e0 cela ne tienne me direz vous, installons notre centrale dans des zones d\u00e9sertiques o\u00f9 le soleil est omnipr\u00e9sent (le jour hein, ne vous gaussez pas !).<\/p>\n

Et l\u00e0 comme un grain de sable dans un rouage bien huil\u00e9 je vous r\u00e9pondrais : \u201cFausse bonne id\u00e9e\u201d en effet trop \u00e9loign\u00e9 des zones de consommation le transport de l’\u00e9lectricit\u00e9 se ferait avec de tr\u00e8s grandes pertes \u00e9nerg\u00e9tiques.<\/p>\n

Alors il n’y a vraiment rien \u00e0 faire ?<\/p>\n

Et si on se penchait sur de tr\u00e8s vieux dossiers poussi\u00e9reux ?<\/p>\n

\"\"<\/p>\n

Une id\u00e9e \u00e9mise dans les ann\u00e9es 1960 par le pentagone imaginait le lancement d’une centrale solaire spatiale qui par sa situation pouvait ainsi transformer 24h\/24 et toute l’ann\u00e9e l’\u00e9nergie solaire en \u00e9lectricit\u00e9.<\/p>\n

\"\"<\/p>\n

Cette id\u00e9e bien que r\u00e9alisable avait \u00e9t\u00e9 \u00e0 l’\u00e9poque vite abandonn\u00e9e devant le co\u00fbt pharaonique de ce projet … mais les temps changent !<\/p>\n

Il y a deux ans le Pentagone a repris ses calculettes et en tandem avec la National Security Space Office a construit un prototype exp\u00e9rimentale ; la production est modeste puisqu’elle ne d\u00e9passe pas les 20 W (oui oui 20 Watts … \u00e0 peine de quoi alimenter une dizaine de petites leds) mais prouve sa viabilit\u00e9 technique.<\/p>\n

Le probl\u00e8me crucial est le co\u00fbt d’une telle production, les calculs actuels indiquent qu’on arriverait \u00e0 pr\u00e8s de 10 Mds de dollar pour une production \u00e9lectrique de 10 MW.<\/p>\n

Il ne faut pas \u00eatre grand clerc pour deviner l’issue d’un tel projet -> retour dans les vieux dossiers !<\/p>\n

Et pourtant faisant fis de toutes ces difficult\u00e9s une start-up compos\u00e9e de v\u00e9t\u00e9rans de l’a\u00e9ronautique et de l’industrie de la d\u00e9fense se propose de relever le d\u00e9fi.<\/p>\n

Le projet qu’ils proposent aujourd’hui serait selon leur calcul 5 fois moins \u00e9lev\u00e9 que l’estimation du Pentagone, les \u00e9conomies \u00e9tant r\u00e9alis\u00e9es sur le plus gros budget \u00e0 savoir le lancement et l’installation de ces panneaux dans l’espace.<\/p>\n

Un projet fou, je vous l’accorde mais qui a le support du Pentagone qui le consid\u00e8re comme un avantage strat\u00e9gique militaire.<\/p>\n

En effet lors de campagne militaire le ravitaillement en combustible permettant aux g\u00e9n\u00e9ratrices \u00e9lectriques de fonctionner n\u00e9cessite une logistique \u00e0 toute \u00e9preuve.<\/p>\n

On comprend d\u00e8s lors l’avantage que l’arm\u00e9e pourrait en tirer …<\/p>\n

Il est n\u00e9anmoins pr\u00e9matur\u00e9 d’ouvrir les bouteilles de champagne (et de lib\u00e9rer ainsi du CO2 captif ;-)) de tr\u00e8s nombreux obstacles, et pas seulement financier, doivent encore \u00eatre franchis.<\/p>\n

Restons optimistes, pour avoir une vraie bonne id\u00e9e il faut en avoir beaucoup de st\u00e9riles.<\/p>\n

Source: Techno-Science<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Le probl\u00e8me de l’alimentation \u00e9lectrique solaire est que le besoin est continu alors que la production solaire est par essence d\u00e9pendante des conditions m\u00e9t\u00e9orologiques et de la dur\u00e9e d’ensoleillement.<\/p>\n

Stockons cette \u00e9nergie me diront certains … heu certes mais les solutions sont loin d’\u00eatre v\u00e9ritablement \u00e9prouv\u00e9es et surtout tr\u00e8s peu \u00e9cologiques.<\/p>\n

Qu’\u00e0 cela ne tienne me direz vous, installons notre centrale dans des zones d\u00e9sertiques o\u00f9 le soleil est omnipr\u00e9sent (le jour hein, ne vous gaussez pas !).<\/p>\n

Et l\u00e0 comme un grain […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[1],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pBGwz-hD","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1093"}],"collection":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/comments?post=1093"}],"version-history":[{"count":0,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1093\/revisions"}],"wp:attachment":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/media?parent=1093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/categories?post=1093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/tags?post=1093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}